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back porch – blank while moving right again, before the start of the next scanline. Colorburst occurs during the back porch, and unblanking happens at the end of the back porch. In the NTSC television standard, horizontal blanking occupies 10.9 μs out of every 63.6 μs scan line (17.2%).
Screen tearing [1] is a visual artifact in video display where a display device shows information from multiple frames in a single screen draw. [ 2 ] The artifact occurs when the video feed to the device is not synchronized with the display's refresh rate.
Burn-in on a monitor, when severe as in this "please wait" message, is visible even when the monitor is switched off. Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic visual display such as a cathode-ray tube (CRT) in an older computer monitor or television set. It is caused by ...
Scan lines are important in representations of image data, because many image file formats have special rules for data at the end of a scan line. For example, there may be a rule that each scan line starts on a particular boundary (such as a byte or word; see for example BMP file format). This means that even otherwise compatible raster data ...
1135×624 4fsc decoded frame (Luma) from a Composite 4fsc decode of a LaserDisc via ld-decode.. In a raster scan display, the vertical blanking interval (VBI), also known as the vertical interval or VBLANK, is the time between the end of the final visible line of a frame or field [1] [2] and the beginning of the first visible line of the next frame or field.
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The horizontal to vertical ratio of each pixel. Storage aspect ratio (SAR) The horizontal to vertical ratio of solely the number of pixels in each direction. [note 1] Display aspect ratio (DAR) The combination (which occurs by multiplication) of both the pixel aspect ratio and storage aspect ratio giving the aspect ratio as experienced by the ...